CN107313780A - Novel sealing form shield machine center steering body - Google Patents
Novel sealing form shield machine center steering body Download PDFInfo
- Publication number
- CN107313780A CN107313780A CN201710658651.3A CN201710658651A CN107313780A CN 107313780 A CN107313780 A CN 107313780A CN 201710658651 A CN201710658651 A CN 201710658651A CN 107313780 A CN107313780 A CN 107313780A
- Authority
- CN
- China
- Prior art keywords
- revolving body
- seal ring
- shield machine
- machine center
- center steering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 27
- 238000007667 floating Methods 0.000 claims abstract description 31
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002689 soil Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of novel sealing form shield machine center steering body, including housing, revolving body afterwards, rebound, preceding revolving body and rotation stop frame, the rear revolving body is arranged in housing, the rear revolving body and preceding revolving body are connected by rebound, floating seal ring and labyrinth seal ring are provided with the preceding revolving body surface, the labyrinth seal ring is arranged on floating seal ring close to preceding revolving body external part side, the floating seal ring has three road VD lip seal configurations, revolving body and housing bottom before the rotation stop frame is arranged on, compensation support is provided with the rotation stop frame side, the novel sealing form shield machine center steering body good sealing effect and can reduce to caused by the local compression of floating seal ring it is abnormal damage.
Description
Technical field
The present invention relates to shield machine technical field, more particularly to a kind of novel sealing form shield machine center steering body.
Background technology
Shielding tunnel excavator, abbreviation shield machine.It is a kind of special engineering machinery of tunnel piercing, modern shield excavation machine
Integrate light, mechanical, electrical, liquid, sensing, information technology, with excavating the cutting soil body, conveying soil quarrel, assembled tunnel-liner, measurement
The functions such as correction are oriented to, are related to the multi-door subject technology such as geology, building, machinery, mechanics, hydraulic pressure, electric, control, measurement, and
Manufacturing and designing for " cutting the garment according to the figure " formula is carried out according to different geology, reliability requirement is high.Shield excavation machine is used extensively
In Tunnel Engineering such as subway, railway, highway, municipal administration, water power.
Center tip form on the market is adapted to outside fluid media (medium) except considering fluid passage quantity at present, mainly close
Envelope form is undesirable, does not take into full account that mud, dregs can be squeezed at sealing under the effect of soil cabin pressure in tunneling process, caused
Rapid Damage is sealed, rotary dynamic seal is not accounted for and is declined for a long time using sealing effectiveness, also gyroaxis and cutterhead, main driving
Decentraction is produced accelerates sealing wear situation to sealing local compression, but actual use has generation in problem above.
It is accordingly required in particular to a kind of good sealing effect and can reduce to abnormal caused by the local compression of floating seal ring
The novel sealing form shield machine center steering body of damage, to solve problems of the prior art.
The content of the invention
The invention aims to solve defect of the prior art there is provided a kind of good sealing effect and can reduce to floating
The novel sealing form shield machine center steering body of abnormal damage caused by the local compression of rotary packing ring, to solve prior art
Present in problem.
To achieve the above object, technical scheme is as follows：
A kind of novel sealing form shield machine center steering body, including housing, rear revolving body, rebound, preceding revolving body and only
Pivoted frame, the rear revolving body is arranged in housing, and the rear revolving body and preceding revolving body are connected by rebound, the preceding revolution
Floating seal ring and labyrinth seal ring are provided with body surface face, the labyrinth seal ring is arranged on floating seal ring close to preceding revolution
Body external part side, the floating seal ring have three road VD lip seal configurations, the rotation stop frame be arranged on before revolving body and
Compensation support is provided with housing bottom, the rotation stop frame side.
In order to further realize the present invention, the rebound one side is fixedly connected with rear revolving body, and the rebound is another
One side is fixedly connected with preceding revolving body.
In order to further realize floating ring end cap is provided with the present invention, the floating seal ring surface.
In order to further realize the present invention, the compensation support includes fixed plate, elastic device and supporting plate, the fixation
Plate is fixedly installed on by screw on the side of rotation stop frame, and described elastic device one end is fixedly installed in fixed plate, the other end
It is fixedly installed on the supporting plate, the supporting plate is contradicted with housing bottom and set.
In order to further realize the present invention, the elastic device includes spring and bolt, and spring is set on bolt, bolt
Upper end is threadedly secured in supporting plate, and bolt lower end is fixed in fixed plate by nut, spring be arranged on supporting plate and
Between fixed plate.
Beneficial effect
(1) present invention can effectively stop that mud, dregs, sandstone axially squeeze into floating close by being provided with labyrinth seal ring
Seal ring, and labyrinth clearance is adjusted according to the situation of driving soil layer, labyrinth seal ring is to be detachably connected with preceding revolving body, labyrinth
Sealing ring is directly exposed in soil cabin, is easily worn and torn in rotation by sandstone, therefore is designed as detachable, is easy to quick more into cabin
Change, by being provided with floating seal ring, floating seal ring is not fixedly mounted, it is ensured that rotary shaft is sealed with rotation with one heart, enhancing
Sealing effectiveness.
(2) present invention is by being provided with compensation support, as Auxiliary support, effectively mitigate cutter head center block support force and
Moment of torsion, compensation gyroaxis and the main driving concentricity of cutterhead, so as to reduce to abnormal caused by the local compression of floating seal ring
Damage.
Brief description of the drawings
Fig. 1 is the structural representation of novel sealing form shield machine center steering body of the present invention；
Fig. 2 is the structural representation of compensation support in novel sealing form shield machine center steering body of the present invention；
Fig. 3 is the structural representation of labyrinth seal ring in novel sealing form shield machine center steering body of the present invention.
Description of reference numerals：
1st, housing；2nd, rear revolving body；3rd, rebound；4th, preceding revolving body；41st, floating seal ring；411st, floating ring end cap；
42nd, labyrinth seal ring；421st, labyrinth semicircular ring；422nd, connecting bolt；423rd, flat key is positioned；424th, positioning screw；5th, rotation stop frame；
6th, support is compensated；61st, fixed plate；62nd, elastic device；621st, spring；622nd, bolt；63rd, supporting plate.
Embodiment
The present invention is further described in detail below in conjunction with the accompanying drawings, these accompanying drawings are simplified schematic diagram, only
Illustrate the basic structure of the present invention in a schematic way, the direction of this specific implementation is using Fig. 1 directions as standard.
Embodiment one
As shown in Figure 1-Figure 3, novel sealing form shield machine center steering body of the present invention includes housing 1, rear revolving body 2, mistake
Cab apron 3, preceding revolving body 4 and rotation stop frame 5, wherein：
Revolving body 2 is arranged in housing 1 afterwards, and rear revolving body 2 and preceding revolving body 4 are connected by rebound 3, rebound 3 one
Side is fixedly connected with rear revolving body 2, and the another side of rebound 3 is fixedly connected with preceding revolving body 4, is set on the preceding surface of revolving body 4
Floating seal ring 41 and labyrinth seal ring 42 are equipped with, labyrinth seal ring 42 is arranged on floating seal ring 41 and stretched close to preceding revolving body 4
Go out and hold side, floating seal ring 41 has three road VD lip seal configurations, floating seal ring 42 includes two labyrinth semicircular rings
421st, connecting bolt 422, positioning flat key 423 and positioning screw 424, two labyrinth semicircular rings 421 are combined by connecting bolt 422
Install and fix, positioning screw 424 is arranged in labyrinth semicircular ring 421, positioning flat key is arranged on the medial extremity of positioning screw, is floated
It is pusher axial compressive force that pressure maximum in floating ring end cap 411, native storehouse is provided with the surface of rotary packing ring 41, by setting
There is labyrinth seal ring 42, can effectively stop that mud, dregs, sandstone axially squeeze into floating seal ring 41, and according to driving soil layer
Situation labyrinth clearance is adjusted by positioning screw 424 and positioning flat key 423, labyrinth seal ring 42 and preceding revolving body 4 are removable
Unload connection, labyrinth seal ring 42 is directly exposed in soil cabin, easily worn and torn in rotation by sandstone, thus be designed as it is detachable,
It is easy into cabin quick-replaceable, by being provided with floating seal ring 41, floating seal ring 41 is not fixedly mounted, it is ensured that sealed in rotation
There is rotary shaft with one heart, strengthen sealing effectiveness.
Compensation support 6, compensation branch are provided with before rotation stop frame 5 is arranged on revolving body 4 and the bottom of housing 1, the side of rotation stop frame 5
Frame 6 includes fixed plate 61, elastic device 62 and supporting plate 63, and fixed plate 61 is fixedly installed on the side of rotation stop frame 5 by screw
On, the one end of elastic device 62 is fixedly installed in fixed plate 61, and the other end is fixedly installed in supporting plate 63, and elastic device 62 is wrapped
Spring 621 and bolt 622 are included, spring 621 is set on bolt 622, the upper end of bolt 622 is threadedly secured to supporting plate 63
On, the lower end of bolt 622 is fixed in fixed plate 61 by nut, and spring 621 is arranged between supporting plate 63 and fixed plate 61, branch
Fagging 63 is contradicted with the bottom of housing 1 and set, by being provided with compensation support 6, as Auxiliary support, effectively mitigates cutter head center block
Support force and moment of torsion, compensation gyroaxis and the main driving concentricity of cutterhead, so as to reduce the local compression to floating seal ring 41
Caused abnormal damage.
The better embodiment of the present invention is the foregoing is only, the invention is not limited in above-mentioned embodiment, is being implemented
During there may be local small structural modification, if the various changes or modification to the present invention do not depart from the essence of the present invention
God and scope, and belong within the scope of the claim and equivalent technologies of the present invention, then the present invention is also intended to comprising these changes
And modification.
Claims (5)
1. a kind of novel sealing form shield machine center steering body, it is characterised in that including housing, rear revolving body, rebound, preceding time
Swivel and rotation stop frame, the rear revolving body are arranged in housing, and the rear revolving body and preceding revolving body are connected by rebound, institute
Floating seal ring and labyrinth seal ring are provided with revolving body surface before stating, the labyrinth seal ring is arranged on floating seal ring and leaned on
Nearby revolving body external part side, the floating seal ring has three road VD lip seal configurations, before the rotation stop frame is arranged on
Compensation support is provided with revolving body and housing bottom, the rotation stop frame side.
2. novel sealing form shield machine center steering body according to claim 1, it is characterised in that the rebound side
Face is fixedly connected with rear revolving body, and the rebound another side is fixedly connected with preceding revolving body.
3. novel sealing form shield machine center steering body according to claim 1, it is characterised in that the floating seal ring
Floating ring end cap is provided with surface.
4. novel sealing form shield machine center steering body according to claim 1, it is characterised in that the compensation support bag
Fixed plate, elastic device and supporting plate are included, the fixed plate is fixedly installed on by screw on the side of rotation stop frame, the elasticity
Device one end is fixedly installed in fixed plate, and the other end is fixedly installed on the supporting plate, and the supporting plate is contradicted with housing bottom
Set.
5. novel sealing form shield machine center steering body according to claim 4, it is characterised in that the elastic device bag
Spring and bolt are included, spring is set on bolt, bolt upper end is threadedly secured in supporting plate, bolt lower end passes through nut
It is fixed in fixed plate, spring is arranged between supporting plate and fixed plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710658651.3A CN107313780B (en) | 2017-08-04 | 2017-08-04 | Novel sealing form shield machine center steering body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710658651.3A CN107313780B (en) | 2017-08-04 | 2017-08-04 | Novel sealing form shield machine center steering body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107313780A true CN107313780A (en) | 2017-11-03 |
| CN107313780B CN107313780B (en) | 2018-12-07 |
Family
ID=60170324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710658651.3A Active CN107313780B (en) | 2017-08-04 | 2017-08-04 | Novel sealing form shield machine center steering body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107313780B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442934A (en) * | 2018-03-28 | 2018-08-24 | 辽宁工程技术大学 | A kind of shield machine sealing structure for set of tunneling construction |
| CN109681709A (en) * | 2018-12-14 | 2019-04-26 | 中船重型装备有限公司 | A kind of shield machine flexible conduit centre revolving joint |
| CN109681218A (en) * | 2018-12-14 | 2019-04-26 | 中船重型装备有限公司 | A kind of novel shield machine center steering body |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11270275A (en) * | 1998-03-20 | 1999-10-05 | Kawasaki Heavy Ind Ltd | Two-stage shield machine |
| JP2000145378A (en) * | 1998-11-13 | 2000-05-26 | Daiho Constr Co Ltd | Shaft-section seal structure |
| CN2672337Y (en) * | 2003-08-28 | 2005-01-19 | 广东凌霄泵业股份有限公司 | Novel seal structure multi stage centrifugal pump |
| CN201908659U (en) * | 2010-12-24 | 2011-07-27 | 三一重型装备有限公司 | Dustproof structure of cutting part of heading machine |
| CN102494136A (en) * | 2011-11-30 | 2012-06-13 | 广州广船国际股份有限公司 | Seal structure of main shaft of excavating equipment |
| CN202867855U (en) * | 2012-09-14 | 2013-04-10 | 上海申科滑动轴承有限公司 | Explosion-proof type labyrinth seal |
| CN203239932U (en) * | 2013-02-21 | 2013-10-16 | 北京建科汇峰科技有限公司 | Large shield tunneling machine lip-shaped seal ring |
| CN203742606U (en) * | 2013-11-12 | 2014-07-30 | 南京城盾重工机械制造有限公司 | Combined sealing system for shield machine |
| CN204083753U (en) * | 2014-09-20 | 2015-01-07 | 辽宁三三工业有限公司 | Shield machine centre revolving joint |
| CN105508620A (en) * | 2016-01-18 | 2016-04-20 | 沈阳航空航天大学 | Self-centering sealing piece for achieving floating through gas pressure difference action and mounting method of self-centering sealing piece |
| CN205558914U (en) * | 2016-04-29 | 2016-09-07 | 中交天和机械设备制造有限公司 | A centre revolving joint for shield constructs quick -wittedly |
| CN205654354U (en) * | 2016-04-29 | 2016-10-19 | 中铁工程装备集团有限公司 | Shield constructs unsteady connecting device of quick -witted centre revolving joint |
| CN106641267A (en) * | 2016-11-24 | 2017-05-10 | 江苏凯宫隧道机械有限公司 | Leak-proof sealing device for central rotation body of shield tunneling machine |
| CN106948830A (en) * | 2017-05-16 | 2017-07-14 | 郎溪腾旋科技有限公司 | A kind of native storehouse sealing device of novel shield machine |
-
2017
- 2017-08-04 CN CN201710658651.3A patent/CN107313780B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11270275A (en) * | 1998-03-20 | 1999-10-05 | Kawasaki Heavy Ind Ltd | Two-stage shield machine |
| JP2000145378A (en) * | 1998-11-13 | 2000-05-26 | Daiho Constr Co Ltd | Shaft-section seal structure |
| CN2672337Y (en) * | 2003-08-28 | 2005-01-19 | 广东凌霄泵业股份有限公司 | Novel seal structure multi stage centrifugal pump |
| CN201908659U (en) * | 2010-12-24 | 2011-07-27 | 三一重型装备有限公司 | Dustproof structure of cutting part of heading machine |
| CN102494136A (en) * | 2011-11-30 | 2012-06-13 | 广州广船国际股份有限公司 | Seal structure of main shaft of excavating equipment |
| CN202867855U (en) * | 2012-09-14 | 2013-04-10 | 上海申科滑动轴承有限公司 | Explosion-proof type labyrinth seal |
| CN203239932U (en) * | 2013-02-21 | 2013-10-16 | 北京建科汇峰科技有限公司 | Large shield tunneling machine lip-shaped seal ring |
| CN203742606U (en) * | 2013-11-12 | 2014-07-30 | 南京城盾重工机械制造有限公司 | Combined sealing system for shield machine |
| CN204083753U (en) * | 2014-09-20 | 2015-01-07 | 辽宁三三工业有限公司 | Shield machine centre revolving joint |
| CN105508620A (en) * | 2016-01-18 | 2016-04-20 | 沈阳航空航天大学 | Self-centering sealing piece for achieving floating through gas pressure difference action and mounting method of self-centering sealing piece |
| CN205558914U (en) * | 2016-04-29 | 2016-09-07 | 中交天和机械设备制造有限公司 | A centre revolving joint for shield constructs quick -wittedly |
| CN205654354U (en) * | 2016-04-29 | 2016-10-19 | 中铁工程装备集团有限公司 | Shield constructs unsteady connecting device of quick -witted centre revolving joint |
| CN106641267A (en) * | 2016-11-24 | 2017-05-10 | 江苏凯宫隧道机械有限公司 | Leak-proof sealing device for central rotation body of shield tunneling machine |
| CN106948830A (en) * | 2017-05-16 | 2017-07-14 | 郎溪腾旋科技有限公司 | A kind of native storehouse sealing device of novel shield machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442934A (en) * | 2018-03-28 | 2018-08-24 | 辽宁工程技术大学 | A kind of shield machine sealing structure for set of tunneling construction |
| CN109681709A (en) * | 2018-12-14 | 2019-04-26 | 中船重型装备有限公司 | A kind of shield machine flexible conduit centre revolving joint |
| CN109681218A (en) * | 2018-12-14 | 2019-04-26 | 中船重型装备有限公司 | A kind of novel shield machine center steering body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107313780B (en) | 2018-12-07 |
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